* Astronomy

Earth Coorbital Asteroid 2003 YN107 is making a close flyby today. The asteroid's corkscrew path is lopsided and on June 10th it will dip within 3.4 million km of the Earth, slightly closer than usual. Earth's gravity...

An international research team led by Academy Research Fellow Mikko Kaasalainen has found an asteroid whose rotation receives an extra kick from solar radiation. The asteroid 1862 Apollo's diameter is about 1.5 km, it has a small m...

Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 63 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .3449310922762138 6.8807e-07 a .9985876635325036 2.5951e-09 AUq .6541437300166848 6.8836e-07 AUi 33.17893126862085 6.4782e-05 d...

Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .01308674718714695 2.2171e-07 a .9933550540147653 3.2295e-08 AUq .9803552675557994 2.0832e-07 AUi 10.74559423974942 5.3662e-05...

Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 81 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .5148364550523318 5.6926e-07 a .9976821472548191 2.9193e-09 AUq .4840390072931496 5.681e-07 AUi 19.81083044915119 1.7794e-05 de...

Orbital elements: 1993 WD Epoch 1993 Nov. 29.0 TT = JDT 2449320.5 Williams M 260.72639 (2000.0) P Q n 0.98261757 Peri. 133.14993 -0.65132203 -0.14394538 a 1.0020276 Node 56.60120 -0.61655953 -0.47192052 e 0.2685038 Incl. 63.17556 +0.44230528 -0.86981076 P 1.00 H 16.0 G 0.15 From 46 observation...

Orbital elements: 1998 RO1 Epoch 1998 Sept. 4.0 TT = JDT 2451060.5 Williams M 254.38706 (2000.0) P Q n 0.99784956 Peri. 151.12512 -0.80418120 -0.59185120 a 0.9918043 Node 351.89302 +0.44276566 -0.53496639 e 0.7223360 Incl. 22.87389 +0.39654908 -0.60292879 P 0.99 H 18.0 G 0.15 From 23 observati...

The 400 metre wide asteroid 1999 JV6 will make a close pass (0.02628 AU), to the Earth-Moon system on the 25th September, 2010. The asteroid was discovered by LINEAR (Lincoln Laboratory ETS, New Mexico) on the 13th May, 1999. The asteroid is an Earth coorbital object, or quasi-satellite. Orbital el...

Something has been spotted orbiting around our planet. 6Q0B44E ate UT R.A. (J2000) Decl. Elong. V Motion Distance h m "/min P.A. km 2006 09 01 1300 00 15 45.9 -23 14 28 153.0 20.2 12.09 124.2 743071 2006 09 01 1400 00 16 29.4 -23 21 15 152.8 20.2 12.07 124.1 743750 2006 09 01...

Lunar swirls are strange markings on the Moon that resemble swirling cream in coffee. They seem to be curly-cues of pale moondust, twisting and turning across the lunar surface for dozens of miles. Each swirl is utterly flat and protected by a magnetic field. One of the swirls, [url=http://www...

The 160 - 350 metre wide asteroid 2004 GU9 will make a close pass (73.4 Lunar Distances, 0.1885 AU), travelling at 7.05 km/s, to the Earth-Moon system on the 28th April 2009. See more The Lunar Distance (LD), the distance betwee...

Title: A long-lived horseshoe companion to the Earth Authors: A. A. Christou, D. J. Asher We present a dynamical investigation of a newly found asteroid, 2010 SO16, and the discovery that it is a horseshoe companion of the Earth. The objects absolute magnitude (H = 20.7) makes this the largest objec...

Early Earth may have had two moons Earth once had two moons, which merged in a slow-motion collision that took several hours to complete, researchers propose in Nature today. Both satellites would have formed from debris that was ejected when a Mars-size protoplanet smacked into Earth late in its f...

This shower was an unusual one-time event that occurred on the 9th February, 1913. The event was unusual because the meteors did not radiate from a single point in the sky; which meant their orbital path was probably around the Earth, rather than the Sun. Because of a lack of a radiant the shower is name...

Asteroid 2014 OL339 is a temporary quasi-satellite of the Earth, the fourth known Earth quasi-satellite. Read more

	Forum	Replies	Views	Last Post
Asteroid Earth moon Asteroid 2003 YN107 (Preview)	Solar System	4	3182	Feb 26 09:25 2015 by Blobrana
Earth Coorbital Asteroid 2003 YN107 is making a close flyby today. The asteroid's corkscrew path is lopsided and on June 10th it will dip within 3.4 million km of the Earth, slightly closer than usual. Earth's gravity...
Asteroid Earth moon Asteroid 1862 Apollo (Preview)	Solar System	4	2638	Sep 6 15:10 2009 by Blobrana
An international research team led by Academy Research Fellow Mikko Kaasalainen has found an asteroid whose rotation receives an extra kick from solar radiation. The asteroid 1862 Apollo's diameter is about 1.5 km, it has a small m...
Earth moon Asteroid 85770 (1998 UP1) (Preview)	Solar System	4	2424	Jul 9 21:51 2011 by Blobrana
Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 63 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .3449310922762138 6.8807e-07 a .9985876635325036 2.5951e-09 AUq .6541437300166848 6.8836e-07 AUi 33.17893126862085 6.4782e-05 d...
Earth moon Asteroid 2002 AA29 (Preview)	Solar System	1	1149	Sep 6 15:21 2009 by Blobrana
Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .01308674718714695 2.2171e-07 a .9933550540147653 3.2295e-08 AUq .9803552675557994 2.0832e-07 AUi 10.74559423974942 5.3662e-05...
Earth moon Asteroid 3753 Cruithne (1986 TO) (Preview)	Solar System	8	4221	Nov 2 17:15 2014 by Blobrana
Orbital Elements at Epoch 2454800.5 (2008-Nov-30.0) TDB Reference: JPL 81 (heliocentric ecliptic J2000) Element Value Uncertainty (1-sigma) Units e .5148364550523318 5.6926e-07 a .9976821472548191 2.9193e-09 AUq .4840390072931496 5.681e-07 AUi 19.81083044915119 1.7794e-05 de...
Earth moon Asteroid 10563 Izhdubar (Preview)	Solar System	0	1034	Sep 6 15:16 2009 by Blobrana
Orbital elements: 1993 WD Epoch 1993 Nov. 29.0 TT = JDT 2449320.5 Williams M 260.72639 (2000.0) P Q n 0.98261757 Peri. 133.14993 -0.65132203 -0.14394538 a 1.0020276 Node 56.60120 -0.61655953 -0.47192052 e 0.2685038 Incl. 63.17556 +0.44230528 -0.86981076 P 1.00 H 16.0 G 0.15 From 46 observation...
Earth moon Asteroid (66063) 1998 RO1 (Preview)	Solar System	0	1105	Sep 6 15:04 2009 by Blobrana
Orbital elements: 1998 RO1 Epoch 1998 Sept. 4.0 TT = JDT 2451060.5 Williams M 254.38706 (2000.0) P Q n 0.99784956 Peri. 151.12512 -0.80418120 -0.59185120 a 0.9918043 Node 351.89302 +0.44276566 -0.53496639 e 0.7223360 Incl. 22.87389 +0.39654908 -0.60292879 P 0.99 H 18.0 G 0.15 From 23 observati...
Earth moon Asteroid (85990) 1999 JV6 (Preview)	Solar System	2	1580	Jan 5 16:53 2016 by Blobrana
The 400 metre wide asteroid 1999 JV6 will make a close pass (0.02628 AU), to the Earth-Moon system on the 25th September, 2010. The asteroid was discovered by LINEAR (Lincoln Laboratory ETS, New Mexico) on the 13th May, 1999. The asteroid is an Earth coorbital object, or quasi-satellite. Orbital el...
Earth moon 6Q0B44E ( 1 2 ) (Preview)	Astronomy News	10	5461	Sep 13 20:44 2011 by Blobrana
Something has been spotted orbiting around our planet. 6Q0B44E ate UT R.A. (J2000) Decl. Elong. V Motion Distance h m "/min P.A. km 2006 09 01 1300 00 15 45.9 -23 14 28 153.0 20.2 12.09 124.2 743071 2006 09 01 1400 00 16 29.4 -23 21 15 152.8 20.2 12.07 124.1 743750 2006 09 01...
moon Lunar Earth moon The Moon ( 1 2 3 4 5 … 15 ) (Preview)	Solar System	148	25452	Nov 9 22:10 2015 by Blobrana
Lunar swirls are strange markings on the Moon that resemble swirling cream in coffee. They seem to be curly-cues of pale moondust, twisting and turning across the lunar surface for dozens of miles. Each swirl is utterly flat and protected by a magnetic field. One of the swirls, [url=http://www...
Earth moon Asteroid (164207) 2004 GU9 (Preview)	Solar System	3	2658	Apr 28 18:55 2010 by Blobrana
The 160 - 350 metre wide asteroid 2004 GU9 will make a close pass (73.4 Lunar Distances, 0.1885 AU), travelling at 7.05 km/s, to the Earth-Moon system on the 28th April 2009. See more The Lunar Distance (LD), the distance betwee...
Earth moon WISE Asteroid 2010 SO16 ( 1 2 ) (Preview)	Asteroids	10	5269	May 15 23:44 2015 by Blobrana
Title: A long-lived horseshoe companion to the Earth Authors: A. A. Christou, D. J. Asher We present a dynamical investigation of a newly found asteroid, 2010 SO16, and the discovery that it is a horseshoe companion of the Earth. The objects absolute magnitude (H = 20.7) makes this the largest objec...
Earth moon Earth moons (Preview)	The Moon	5	2517	Jul 5 18:52 2014 by Blobrana
Early Earth may have had two moons Earth once had two moons, which merged in a slow-motion collision that took several hours to complete, researchers propose in Nature today. Both satellites would have formed from debris that was ejected when a Mars-size protoplanet smacked into Earth late in its f...
Earth moon Cyrillid Meteor Shower (Preview)	Meteorite News	5	3426	Feb 8 18:30 2014 by Blobrana
This shower was an unusual one-time event that occurred on the 9th February, 1913. The event was unusual because the meteors did not radiate from a single point in the sky; which meant their orbital path was probably around the Earth, rather than the Sun. Because of a lack of a radiant the shower is name...
Earth moon Asteroid 2014 OL339 (Preview)	Asteroids 2014	2	673	Sep 30 21:35 2014 by Blobrana
Asteroid 2014 OL339 is a temporary quasi-satellite of the Earth, the fourth known Earth quasi-satellite. Read more